Contents volume 149

EP’SL Earth and Planetary

Science Letters 149 (1997) 133

Contents Volume 149 Regular Letters Multiple active spreading centres in the hot North Fiji Basin (Southwest Pacific): a possible model for Archaean seafloor dynamics‘? . . . . . . . Y. Lagabrielle, J. Goslin, H. Martin, J.-L. Thirot and J.-M. Auzende . . . . . . . . . . . Continents as lithological icebergs: the importance of buoyant lithospheric roots . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . D.H.Abbott,R.DmryandW.D.Mooney.. On the structure and mechanical behaviour of the extending lithosphere in the Baikal Rift from gravity modelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . C. Petit, E. Burov and J. DCverchtre Asymmetry in the reversal rate before and after the Cretaceous Normal Polarity Superchron . . . . . .. . . . . . . . . . . P.L. McFadden and R.T. Merrill. . . . . . . . . . . . . . . . . . . . Along-axis dynamic topography constrained by major-element chemistry . . .. . . . . . . . . . . .. . P. Lecroart, A. Cazenave, Y. Ricard, C. Thoraval and D.G. Pyle . . . Raman spectra of phase E at various pressures and temperatures with geophysical implications . . . . . . . . . . . . . L.-g. Liu, T.P. Memagh, C.C. Lin and T. Irifune . . . . . . . . . . . Melt generation models for the Auckland volcanic field, New Zealand: constraints from U-Th isotopes . .. . . . . . . Y. Huang, C. Hawkesworth, P. van Calsteren, I. Smith and P. Black . . . . . . . . . . . . . . Enhanced scavenging of *“Pa relative to 230Th in the South Atlantic south of the Polar Front: Implications for the use of the ‘I’ Pa/ a3’Th ratio as a paleoproductivity proxy . . .. .. . . . . . . . .. .. . . H.J. Walter, M.M. Rutgers van der Loeff and H. Hoeltzen. . . . . . Direct observation of the evolution of a seafloor ‘black smoker’ from vapor to brine . . K.L. Von Damm, L.G. Buttermore, S.E. Oosting, A.M. Bray, D.J. Fomari, M.D. Lilley and W.C. Shanks, III . . . Springwater chloride ion anomaly prior to a M, = 5.2 Pyrenean earthquake . . .. . . . . . . J.P. Toutain, M. Munoz, F. Poitrasson and A.C. Lienard . . . . . . . . . . . . . . . . A 200 kyr record of cosmogenic radionuclide production rate and geomagnetic field intensity from lo Be in globally stacked deep-sea sediments . . . . . . M. Frank, B. Schwarz, S. Baumann, P.W. Kubik, M. Suter and A. Mangini. . . . . . Author Index Volume 149 Contents

Volume 149.

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